<template>

    <div class="app-container">
        <el-form label-width="120px">
        <el-form-item label="信息描述">
        <el-tag type="info">excel模版说明</el-tag>
        <el-tag>
        <i class="el-icon-download"/>
        <a :href="'/static/11.xls'">点击下载模版</a>
        </el-tag>
        </el-form-item>
        <el-form-item label="选择Excel">
        <el-upload
        ref="upload"
        :auto-upload="false"
        :on-success="fileUploadSuccess"
        :on-error="fileUploadError"
        :disabled="importBtnDisabled"
        :limit="1"
        :action="BASE_API+'/eduservice/subject/addSubject'"
        name="file"
        accept="application/vnd.ms-excel">
        <el-button slot="trigger" size="small" type="primary">选取文件</el-button>
        <el-button
        :loading="loading"
        style="margin-left: 10px;"
        size="small"
        type="success"
        @click="submitUpload">{{ fileUploadBtnText }}</el-button>
        </el-upload>
        </el-form-item>
        </el-form>
    </div>

</template>


<script>
export default {
    data(){
        return{
            BASE_API: process.env.BASE_API, // 接口API地址
            fileUploadBtnText: '上传到服务器', // 按钮文字
            importBtnDisabled: false, // 按钮是否禁用,
            loading: false
        }
    },
    created(){


    },
    methods:{
        //点击上传
        submitUpload(){
                this.importBtnDisabled =true
                this.loading =true
                this.$refs.upload.submit()
                 
        },
        //上传成功
        fileUploadSuccess(response){
                if(response.success === true){
                    this.fileUploadBtnText = '导入成功'
                    this.loading = false
                    this.$message({
                        type: 'success',
                        message: response.message
                    })
                }
                //路由跳转
                this.$router.push({path:'/subject/list'})

        },
        //上传失败
        fileUploadError(response){
            this.fileUploadBtnText = '导入失败'
            this.loading = false
            this.$message({
            type: 'error',
            message: '导入失败'
 })
        }


    }
}
</script>